I have a 1995 BMW 318i, E36, and i want to modify it, but still go naturally aspirated. Anyone know of any companies that specialize in engine parts, or make parts for it? thanks.
if you want to stick with an n/a Engine, forget about modifying your engine. It will just become way too expensive. For the price of an new exhaust and some other useless noisy stuff (about 15hp gain) you can get an 6 cylinder (M52B28 for example) engine which is just better in any way. As a little extra the m52 Engine is easy to modify. Give it a M50 manifold and a remapping, this will give it about 20hp already. This ends up in 200-225hp for an relatively small amount of money.
otherwise loose some weight on the car. Spare Wheel, Panels, Bootfloor, back seats and so on. This is mostly for free and it will effect the Power to weight ratio plus the cornering fun massively.
